Unified Interior Regions

Hawaii

The Pacific Region has nine USGS Science Centers in California, Nevada, and Hawaii. The Regional Office, headquartered in Sacramento, provides Center oversight and support, facilitates internal and external collaborations, and works to further USGS strategic science directions.

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Map showing flow field changes...
December 3, 2015

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field.

Small-scale map of flow field...
December 3, 2015

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to the eastern part of the Island of Hawai‘i. 

Satellite image shows June 27th lava flow...
November 30, 2015

This satellite image was captured on Monday, November 30, by the Advanced Land Imager instrument onboard NASA's Earth Observing 1 satellite. 

Small-scale map of flow field...
November 12, 2015

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to the eastern part of the Island of Hawai‘i. 

Map showing flow field changes...
November 12, 2015

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field.

Small-scale map of flow field...
October 23, 2015

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to the eastern part of the Island of Hawai‘i.

Map showing flow field changes...
October 23, 2015

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field. 

Landsat satellite image shows June 27th lava flow...
October 13, 2015

This satellite image was captured on Tuesday, October 13, 2015 by the Landsat 8 satellite. 

Map showing flow field changes...
September 30, 2015

This map shows recent changes to Kīlauea’s active East Rift Zone lava flow field.

Small-scale map of flow field...
September 30, 2015

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to the eastern part of the Island of Hawai‘i.

Large-scale map with thermal mosaic overlay...
September 11, 2015

This map overlays a georeferenced thermal image mosaic onto a map of the flow field to show the distribution of active and recently active breakouts.

Small-scale map of flow field...
September 11, 2015

This small-scale map shows Kīlauea’s active East Rift Zone lava flow in relation to the eastern part of the Island of Hawai‘i. 

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July 13, 2018

Kīlauea Volcano's summit (DEM)

Since early May 2018, the floor of Halema‘uma‘u Crater has dropped 450 m (about 1480 ft). Extensive cracking and faulting around the crater, along with inward slumping of the crater rim, has more than doubled its diameter. Like a balloon slowly losing air, subsidence occurs because magma in Kīlauea's shallow summit reservoir is moving into the East Rift Zone more rapidly

This Hawai‘i County Fire Department aerial image shows Kapoho Crater
July 13, 2018

This Hawai‘i County Fire Department aerial image shows Kapoho Crater

This Hawai‘i County Fire Department aerial image shows Kapoho Crater with the most active branch of the fissure 8 lava channel now to the west (right) of the cone and feeding a robust ocean entry. The path of the fissure 8 channel prior to being diverted can be seen east (below and left) of the crater; despite no visible surface connection between this branch and the sea,

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Sink holes (dark spots to right of large tree) are beginning to form
July 13, 2018

Sink holes (dark spots to right of large tree) are beginning to form

Sink holes (dark spots to right of large tree) are beginning to form along fractures beneath the field of tephra that has formed downwind of fissure 8. Tephra (Pele's hair and other airborne volcanic glass fragments) from the fissure 8 lava fountains continues to fall downwind, covering the ground within a few hundred meters (yards) of the active vent. High winds can waft

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July 12, 2018

Timelapse video of Halema'uma'u and Kīlauea Caldera

This time-lapse video shows Halema‘uma‘u and Kīlauea Caldera as seen from the USGS Hawaiian Volcano Observatory. It includes roughly one image for every day between April 14, 2018, and July 11, 2018. The lava lake is visible early in the video, with overflows onto the caldera floor on April 23, but the lake vanishes from sight in early May as pressure in the summit magma

July 12, 2018

Kīlauea Volcano's lower East Rift Zone compilation video

This compilation of video from HVO's early morning overflight of Kīlauea Volcano's lower East Rift Zone shows (1) lava from fissure 8 moving through a perched channel toward the northeast, (2) the diverted channelized ‘a‘ā flow west of Kapoho Crater, and (3) a vigorous ocean entry along the southern coastline in the vicinity of Ahalanui Beach Park (Warm Ponds).

July 12, 2018

Rockfalls and Sounds

Listen to the sounds of rockfalls at Kīlauea Volcano's summit in this short video taken from the northeast rim of the caldera. At 2:42 p.m. HST on July 12, 2018, a collapse/explosion event at Kīlauea's summit released energy equivalent to a magnitude-5.3 earthquake. Rockfalls that occurred in Halema‘uma‘u and along the steep summit caldera walls during the event can be

Color photograph of plume from lava entering ocean
July 12, 2018

Ocean entry plume rising from just offshore of Ahalanui Beach Park

In this aerial view looking to the north, a robust ocean entry plume can be seen rising from just offshore of Ahalanui Beach Park, which was inundated with lava yesterday. Beyond this entry

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July 11, 2018

Four Examples of Nest Predation by Rats - Hawaii Volcanoes National

Black rats were unintentionally introduced to Hawai’i in the late 1800s, most likely as hitchhikers on trading vessels. Since their introduction, they have disrupted native ecosystems by destroying native plants, eating native arthropods, and depredating bird nests. Black rats have contributed to population declines and species extinctions of Hawaiian forest birds, and

During an overflight this morning, the Hawaii County Fire Department captured this image looking east toward Kapoho Crater. A br
July 11, 2018

Kīlauea lower East Rift Zone lava flow

During an overflight this morning, the Hawaii County Fire Department captured this image looking east toward Kapoho Crater. A breakout from the south margin of the main fissure 8 channel is sending a 

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July 11, 2018

Four Examples of Nest Predation by Rats (Short)

Black rats were unintentionally introduced to Hawai’i in the late 1800s, most likely as hitchhikers on trading vessels. Since their introduction, they have disrupted native ecosystems by destroying native plants, eating native arthropods, and depredating bird nests. Black rats have contributed to population declines and species extinctions of Hawaiian forest birds, and

Aerial of lava channel
July 10, 2018

Kīlauea Volcano — Landscape Differences

During HVO's morning overflight today, the dramatic difference in landscapes on the northern and southern sides of the fissure 8 lava channel was readily apparent. With dominant trade winds blowing heat and volcanic gases to the southwest, the north side of the lava channel remains verdant, while, in stark contrast, vegetation on the south side has been severely impacted

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Night time view of Halekamahina
July 10, 2018

Kīlauea Volcano — Looking Uprift Past Halekamahina

View from Bryson's quarry around 11:45 p.m. HST last night looking uprift past Halekamahina (an older ash cone) to 

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Halema‘uma‘u at the summit of Kīlauea Volcano captured from an Unmanned Aircraft Systems
June 1, 2018

With the current activity at the volcano's lower East Rift Zone and summit, it's an understatement to say that Kīlauea has been making worldwide headlines the past month.

USGS
May 29, 2018

Deflation at Kīlauea's summit has caused up to 1.5 meters (about 5 feet) of subsidence, which has stressed the faults around and within Kīlauea Caldera. 

pockets of natural gas from the burning plant material can ignite
May 24, 2018

Numerous hazards are associated with active lava flows, and USGS Hawaiian Volcano Observatory scientists have written about many of them in past Volcano Watch articles. However, it's been a while since one particular hazard—so-called "methane explosions"—has been addressed.

USGS
May 24, 2018

An explanation of magma movement from Kīlauea's summit through the volcano's East Rift Zone and to the eruption site(s) in lower Puna.

Image: Monitoring Gas Emissions from Kilauea Volcano
May 17, 2018

With ash eruptions occurring from Kilauea’s summit this week, there is a threat of an even larger steam-driven violent explosion. Such an eruption could happen suddenly and send volcanic ash 20,000 feet into the air, threatening communities for miles.

overall vigor of fissure appeared to have dropped from the previous two days
May 17, 2018

False rumors about the ongoing volcanic activity at the summit and lower East Rift Zone of Kīlauea Volcano are causing unnecessary anxiety and confusion. We encourage everyone to check the source of any information you read or hear to be sure that it's factual, accurate, and timely.

USGS
May 14, 2018

Addresses speculative stories, rumors and blogs about the stability of the south flank of Kīlauea and the potential for a catastrophic collapse that could generate a Pacific-wide tsunami.

distribution of ballistics and tephra from the 1924 phreatic explosions
May 11, 2018

Last week's Volcano Watch focused on the East Rift Zone eruption, which continues to impact the lower Puna District on the Island of Hawai‘i. Changes in the eruption are occurring daily, if not hourly, so by the time you read this article, the situation will likely have changed. Nevertheless, here's the status of the eruption as of Friday, May 11 (when this was written):

Screencapture of the International Volcanic Health Hazard Network V...
May 11, 2018

The International Volcanic Health Hazard Network (IVHHN) has a new resource for the current eruptive activity and associated hazards at Kīlauea Volcano's lower East Rift Zone and summit. Find it at https://vog.ivhhn.org

Short-lived explosion at Halema‘uma‘u crater, 8:27 a.m. HST...
May 9, 2018

Short-lived explosion at Halema‘uma‘u crater, 8:27 a.m. HST

USGS
May 9, 2018

The steady lowering of the lava lake in "Overlook crater" within HALEMAUMAU at the summit of KILAUEA Volcano has raised the potential for explosive eruptions in the coming weeks.